rictus

/หˆษนษชk.tษ™s/

IPA: /R IH1 K T AH0 S/

noun
  1. 1

    A bird's gaping mouth.

  2. 2

    The throat of a calyx.

  3. 3

    Any open-mouthed expression.

    โ€œHis face was a rictus of sheer delight.โ€

Source: https://en.wiktionary.org/wiki/rictus